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<h1 id="JMCOH-GUID-DDE72C8A-0A15-43F9-A109-EB87804FD480" class="sect1">Working with Stack Traces</h1>
<div><p>The <span class="bold">Stack Trace</span> window contains the aggregated stack traces for the recorded events.</p>
<p>You can use this window to analyze the calls on the stack trace that cause a large number of events.</p>
<p></p>
<div class="section"><p class="subhead1">Working with Stack Traces: Choosing Options</p><div class="p"> The following buttons appear in a row at the top of the Stack Trace window:<ul style="list-style-type: disc;"><li><p><span class="bold">Choose Frame Group</span>: Select which frame group to expand</p>
</li>
<li><p><span class="bold">Previous Frame Group</span>: Navigate to the previous group of stack frames (when not displayed as a tree).</p>
</li>
<li><p><span class="bold">Next Frame Group</span>: Navigate to the next group of stack frames (when not displayed as a tree).</p>
</li>
<li><p><span class="bold">Group Traces from Last Method Frame</span>: Groups the stack traces using their final method frame</p>
</li>
<li><p><span class="bold">Group Traces from Thread Root</span>: Groups each stack trace using their initial thread root.</p>
</li>
<li><p><span class="bold">Show as Tree</span>: Expands the frame groups into a tree.</p>
</li>
<li><p><span class="bold">View Menu</span>: Displays various grouping, formatting, and layout options.</p>
</li>
<li><p><span class="bold">Minimize</span>: Minimizes this window.</p>
</li>
<li><p><span class="bold">Maximize</span>: Maximizes this window.</p>
</li>
</ul>
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<div class="section"><p class="subhead1">Working with Stack Traces: Viewing Results</p><p>By default, the stack trace displays its results in an interactive tree view. You can explore parts of the stack trace by expanding or collapsing on rows that begin with a triangle icon. </p>
<div class="p">The <span class="bold">View Menu</span> icon at the top of the page provides the following options:<ul style="list-style-type: disc;"><li><p><span class="bold">Group Stacktraces From</span></p>
<ul style="list-style-type: disc;"><li><p>Last Frame: </p>
</li>
<li><p>Thread Root: </p>
</li>
</ul>
</li>
<li><div class="p"><span class="bold">Distinguish Frames By</span><ul style="list-style-type: disc;"><li><p>Optimization Type: </p>
</li>
</ul>
<ul style="list-style-type: disc;"><li>Bytecode Index: </li>
<li><p>Line Number: </p>
</li>
<li><p>Method: </p>
</li>
<li><p>Class: </p>
</li>
<li><p>Package: </p>
</li>
</ul>
</div>
</li>
<li><div class="p"><span class="bold">Layout Options</span><ul style="list-style-type: disc;"><li><p>Show as Tree: </p>
</li>
<li><p>Reduce Tree Depth: </p>
</li>
</ul>
</div>
</li>
<li><div class="p"><span class="bold">Method Formatting Options</span><ul style="list-style-type: disc;"><li><div class="p">Return Value<ul style="list-style-type: disc;"><li><p>Hidden</p>
</li>
<li><p>Class Name</p>
</li>
<li><p>Class and Package Name</p>
</li>
</ul>
</div>
</li>
<li><div class="p">Class<ul style="list-style-type: disc;"><li><p>Hidden</p>
</li>
<li><p>Class Name</p>
</li>
<li><p>Class and Package Name</p>
</li>
</ul>
</div>
</li>
<li><div class="p">Parameters<ul style="list-style-type: disc;"><li><p>Hidden</p>
</li>
<li><p>Class Name</p>
</li>
<li><p>Class and Package Name</p>
</li>
</ul>
</div>
</li>
</ul>
</div>
</li>
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<p>For in-depth examples of working with stack traces, see the JMC 7.0 User Guide. </p>
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